{"product_id":"cometic-nissan-sr20det-86-5mm-bore-051in-mls-head-gasket-w-no-extra-oil-holes","title":"Cometic Nissan SR20DET 86.5mm Bore .051in. MLS Head Gasket w\/ No Extra Oil Holes","description":"\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eCometic MLS Head Gasket — Nissan SR20DE\/DET, 86.5mm Bore, .051\" (H1796SP1051S)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eA multi-layer steel head gasket for the SR20, and the standard answer when the factory gasket becomes the weak link on a boosted build.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eMLS provides maximum sealing performance and requires no sealants.\u003c\/strong\u003e Multiple layers of stainless steel give increased strength plus the ability to rebound and resist corrosion — that rebound is what keeps the seal alive through heat cycles instead of crushing once and staying crushed.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe outer layers are embossed and coated both sides with Viton, a fluoroelastomer rubber heat resistant to 250°C \/ 482°F, designed for harsh sealing environments, load conditions, and surface finishes. The center shim layer is uncoated stainless, and its thickness sets the compressed height.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eNo re-torque needed\u003c\/strong\u003e — the embossing design promotes an even clamp load across the sealing surface, which measurably reduces bore distortion.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eIdeal for aluminum heads to aluminum blocks and aluminum heads to cast iron blocks, withstanding the shearing force created between two materials with different expansion rates.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e 86.5mm bore, .051\" (1.3mm) compressed thickness. \u003cstrong\u003eIncludes both additional oil holes\u003c\/strong\u003e — the S14 configuration.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 1989-1998 Nissan 240SX with SR20DE\/SR20DET swap, S13\/S14\/S15 Silvia. Also FWD SR20 applications.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eVerify your oil hole configuration.\u003c\/strong\u003e Cometic makes this gasket both with and without the extra oil holes, and the S13 and S14 blocks differ. Ordering the wrong one is the most common mistake on this part.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eHead studs are effectively required.\u003c\/strong\u003e An MLS gasket on stock head bolts under real boost is how people end up doing this job twice.\u003c\/p\u003e","brand":"Street Strip Supply","offers":[{"title":"Default Title","offer_id":47294146904237,"sku":null,"price":99.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/8105\/7197\/files\/cgsH1796SP1051S.jpg?v=1787403474","url":"https:\/\/streetstripsupply.com\/products\/cometic-nissan-sr20det-86-5mm-bore-051in-mls-head-gasket-w-no-extra-oil-holes","provider":"Street Strip Supply","version":"1.0","type":"link"}